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| author | Robert Marko <robimarko@gmail.com> | 2024-02-11 19:16:41 +0100 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2024-02-13 15:46:42 +0100 |
| commit | bed90b06b6812d9c8c848414b090ddf38f0e6cc1 (patch) | |
| tree | 46ff373ff8111f95f4e1ecc95ef377a6bbea3d23 /drivers/net/phy/aquantia | |
| parent | 32c7eec21c11e149a9195cf0d48cc530d1e5a637 (diff) | |
| download | linux-stable-bed90b06b6812d9c8c848414b090ddf38f0e6cc1.tar.gz linux-stable-bed90b06b6812d9c8c848414b090ddf38f0e6cc1.tar.bz2 linux-stable-bed90b06b6812d9c8c848414b090ddf38f0e6cc1.zip | |
net: phy: aquantia: clear PMD Global Transmit Disable bit during init
PMD Global Transmit Disable bit should be cleared for normal operation.
This should be HW default, however I found that on Asus RT-AX89X that uses
AQR113C PHY and firmware 5.4 this bit is set by default.
With this bit set the AQR cannot achieve a link with its link-partner and
it took me multiple hours of digging through the vendor GPL source to find
this out, so lets always clear this bit during .config_init() to avoid a
situation like this in the future.
Signed-off-by: Robert Marko <robimarko@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20240211181732.646311-1-robimarko@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'drivers/net/phy/aquantia')
| -rw-r--r-- | drivers/net/phy/aquantia/aquantia_main.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/net/phy/aquantia/aquantia_main.c b/drivers/net/phy/aquantia/aquantia_main.c index 97a2fafa15ca..e1f092cbfdce 100644 --- a/drivers/net/phy/aquantia/aquantia_main.c +++ b/drivers/net/phy/aquantia/aquantia_main.c @@ -727,6 +727,15 @@ static int aqr113c_config_init(struct phy_device *phydev) if (ret < 0) return ret; + ret = phy_clear_bits_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PMA_TXDIS, + MDIO_PMD_TXDIS_GLOBAL); + if (ret) + return ret; + + ret = aqr107_wait_processor_intensive_op(phydev); + if (ret) + return ret; + return aqr107_fill_interface_modes(phydev); } |